spi: spi-cadence: Reverse the order of interleaved write and read operations

[linux-2.6-microblaze.git] / drivers / spi / spi-cadence.c

diff --git a/drivers/spi/spi-cadence.c b/drivers/spi/spi-cadence.c
index a50eb4d..e514053 100644 (file)
--- a/drivers/spi/spi-cadence.c
+++ b/drivers/spi/spi-cadence.c
@@ -317,6 +317,15 @@ static void cdns_spi_process_fifo(struct cdns_spi *xspi, int ntx, int nrx)
        xspi->rx_bytes -= nrx;
 
        while (ntx || nrx) {
+               if (nrx) {
+                       u8 data = cdns_spi_read(xspi, CDNS_SPI_RXD);
+
+                       if (xspi->rxbuf)
+                               *xspi->rxbuf++ = data;
+
+                       nrx--;
+               }
+
                if (ntx) {
                        if (xspi->txbuf)
                                cdns_spi_write(xspi, CDNS_SPI_TXD, *xspi->txbuf++);
@@ -326,14 +335,6 @@ static void cdns_spi_process_fifo(struct cdns_spi *xspi, int ntx, int nrx)
                        ntx--;
                }
 
-               if (nrx) {
-                       u8 data = cdns_spi_read(xspi, CDNS_SPI_RXD);
-
-                       if (xspi->rxbuf)
-                               *xspi->rxbuf++ = data;
-
-                       nrx--;
-               }
        }
 }